A month later De Rozier and the Marquis d'Arlandes flew, untethered, to 500 feet and traveled about five and a half miles in a 20-minute flight, the first 'free flight' made by man. The ...

A large balloon used by US Customs and Border Protection for surveillance along the Texas border broke free and traveled about ... an upper chamber filled with helium, and the lower chamber ...

Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

Chef Grant Achatz serves up some very unusual dishes, and one of the most popular is an edible helium balloon. Customers are served the balloons and encouraged to suck in the helium before eating it.